The innovative study reveals the formation of 1:1 hosts–guest inclusion complexes for all the titled α-amino acids in the hydrophobic cavity of both α and β-cyclodextrin. The thermodynamic parameters for inclusion were studied depending on size and state of the guest molecules to draw inferences about contributions to the overall binding.

Spectroscopic and physicochemical studies reveal formation of host–guest inclusion complexes of RNA nucleosides inside hydrophobic cavity of α and β-cyclodextrins.

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Precise measurements on electrical conductance (Λ) of solutions of an ionic liquid (IL) tetrabutylphosphonium tetrafluoroborate in acetonitrile (ACN), tetrahydrofuran (THF), and 1,3-dioxolane (1,3-DO) and their binary mixtures have been reported at 298.15 K. The conductance data have been analyzed by the Fuoss conductance equation (1978) in terms of the limiting molar conductance (Λ(o)), the association constant (K(A)), and the association diameter (R) for ion-pair formation. The Walden product is obtained and discussed. However, the deviation of the conductometric curves (Λ versus √c) from linearity for the electrolyte in THF and 1,3-DO and their binary mixtures indicated triple-ion formation and therefore the corresponding conductance data have been analyzed by the Fuoss–Kraus theory of triple ions. The limiting ionic conductances (λ(o)(±)) have been estimated from the appropriate division of the limiting molar conductivity value of tetrabutylammonium tetraphenylborate [Bu(4)NBPh(4)] as the “reference electrolyte” method along with a numerical evaluation of ion-pair and triple-ion formation constants (K(P) ≈ K(A) and K(T)). The results have been discussed in terms of solvent properties and configurational theory. Ionic association in the limiting molar conductances as well as the single-ion conductivity values have been determined for the electrolyte in the solvent media.

Exploration of significant interactions in eco-friendly RTILs in some liquid systems with a wide range of applications.